Oh what a difference a bigger chiller can make.

[jrock flimflam]

I had a 1/15 hp chiller on the tank (Tank, sump, and Fug are around 180 TWV) but that was way to small.
Ran all the time and pumped heat in to the room like a space heater.
I did the math based on a formula I found for water volume vs degrees needing to reduce and came up with like 0.6 hp but I found a great deal on a EcoPlus 1hp chiller so I went for it.
It is installed on the outflow side of my 4ft 40 watt UV light.

Tank has gone from 3 degree plus swings every day (with keeping the house cooler than spouse likes) and even higher when the power A/C was out last week.
To now spouse has raised house temp by 2 degrees and tank is only seeing 1 degree swing or 1/2 +/- degree variation 77.6.
Chiller runs about 30-45mins and then waits for like an hour and then runs again, but it is not straining and does not blow any heat in to the sump room.
Chillers are one thing I like oversized I think.

 

[ca1ore]

Interesting. 1/15 is much too small for a 180 gallon system but I would have thought 1HP to be much too big. I run a 3/4 HP tradewinds on a system that contains 600 total gallons. Takes the unit about 20 mins to drop the system by a degree F. The downside of a significantly oversized chiller is the risk of it getting stuck on.

 

[jrock flimflam]

I noticed my salinity readings have leveled out when I added the new chiller.
What is the science behind salinity and temp?